Post malleable Penile Prosthesis Satisfaction in elderly patients: Serial assessments.

Post penile implant sexual satisfaction in elderly patients is a multifactorial issue. In the present study, we investigated the possible implication of age on satisfaction after malleable penile implant surgery in elderly patients. We compared post-operative sexual satisfaction in the elderly with that of a younger age group (reference group). Patients were classified into three groups according to their ages (group I <45, group II between 45 and 65, and group III older than 65 years old). Modified Erectile Dysfunction Inventory of Treatment Satisfaction (EDITS) questionnaire was used at 3, 6 and 12 months after implant surgery. EDITS scores showed statistically significant high satisfaction rates in all age groups. EDITS scores were higher in the early post-operative period in younger groups compared to elderly patients. However, the difference between groups was insignificant at 12 months post-operatively (p value = .06). Our results show that elderly patients have a high post-operative satisfaction rate close to that of younger age groups, and they are suitable candidates for penile implant surgery with good and realistic post-operative sexual satisfaction expectations.

Optical and Thermal Behavior of Germanium Thin Films under Femtosecond Laser Irradiation.

In this study, we theoretically investigate the response of a germanium thin film under femtosecond pulsed laser irradiation. Electron and lattice temperatures, as well as material-specific optical properties such as dielectric function and reflectivity, were calculated during the irradiation using an extended two-temperature model coupled with the carrier density rate equation and the Drude model. Melting and ablation fluence thresholds were also predicted, resulting in 0.14 J cm-2 and 0.35 J cm-2, respectively. An ultrafast change in both optical and thermal properties was detected upon laser irradiation. Results also indicate that thermal melting occurs after germanium takes on a metallic character during irradiation, and that the impact ionization process may have a critical role in the laser-induced thermal effect. Therefore, we suggest that the origin of the thermal modification of germanium surface under femtosecond laser irradiation is mostly due the impact ionization process and that its effect becomes more important when increasing the laser fluence.

Morphological Study of Nanostructures Induced by Direct Femtosecond Laser Ablation on Diamond.

High spatial frequency laser induced periodic surface structure (HSFL) morphology induced by femtosecond laser with 230 fs pulse duration, 250 kHz repetition rate at 1030 nm wavelength on CVD diamond surface is investigated and discussed. The spatial modification was characterized and analyzed by Scanning Electron Microscopy (SEM), Atomic Force Microscopy (AFM) and 2D-Fast Fourier Transform (2D-FFT). We studied the effect of pulse number and laser power on the spatial development of nanostructures, and also deduced the impact of thermal accumulation effect on their morphology. A generalized plasmonic model has been used to follow the optical evolution of the irradiated surface and to determine the periodic value of the nanostructures. We suggest that non-thermal melting and plasmonic excitation are the main processes responsible for the formation of HSFL-type nanostructures.